Colorable polymeric compositions exhibiting enhanced aging properties

Abstract

A polymeric composition includes a first ethylene-based polymer having a density of 0.941 g/cc to 0.970 g/cc as measured according to ASTM D792, a second ethylene-based polymer has a density of 0.860 g/cc to 0.930 g/cc as measured according to ASTM D792, and an additive selected from the group consisting of an antioxidant, a hindered amine light stabilizer and combinations thereof. The polymeric composition has a Total Comonomer Content of 2.9 wt % or greater based on a total weight of the polymeric composition.

1 . A polymeric composition, comprising:
 a first ethylene-based polymer having a density of 0.941 g/cc to 0.970 g/cc as measured according to ASTM D792;   a second ethylene-based polymer having a density of 0.860 g/cc to 0.930 g/cc as measured according to ASTM D792; and   an additive selected from the group consisting of an antioxidant, a hindered amine light stabilizer and combinations thereof,   wherein polymeric composition has a Total Comonomer Content of 2.9 wt % or greater based on a total weight of the polymeric composition.   
     
     
         2 . The polymeric composition of  claim 1 , wherein the polymeric composition comprises 40 wt % to 95 wt % of the first ethylene-based polymer based on the total weight of the polymeric composition. 
     
     
         3 . The polymeric composition of  claim 2 , wherein the polymeric composition comprises 5 wt % to 60 wt % of the second ethylene-based polymer based on the total weight of the polymeric composition. 
     
     
         4 . The polymeric composition of  claim 3 , wherein the polymeric composition is free of carbon black. 
     
     
         5 . The polymeric composition of  claim 1 , wherein the polymeric composition has a density of 0.945 g/cc or less as measured according to ASTM D792. 
     
     
         6 . The polymeric composition of  claim 5 , wherein the polymeric composition exhibits a tensile elongation at break of 600% or greater in a UV-Aged state as measured according to ASTM D638. 
     
     
         7 . The polymeric composition of  claim 1 , wherein the polymeric composition has a density of 0.930 g/cc to 0.945 g/cc as measured according to ASTM D792. 
     
     
         8 . The polymeric composition of  claim 7 , wherein a density of the second ethylene-based polymer is from 0.918 g/cc to 0.930 g/cc as measured according to ASTM D792. 
     
     
         9 . The polymeric composition of  claim 8 , wherein the polymeric composition exhibits a tensile elongation at break of 600% or greater as measured according to ASTM D638 after aging for 240 hours at 100° C. 
     
     
         10 . A coated conductor, comprising:
 a conductor; and   the polymeric composition of  claim 1  disposed around the conductor.